How can I make this sentence better, or is it OK?

If students at Miriam Middle School weren’t excited about their upcoming gravity project, they were after school Friday.

It reads fine, but it's a bit wordy. Maybe this?

If Miriam Middle School students weren't excited about the gravity project, they certainly were on Friday afternoon.

Or is there another word you could suggest rather than certainly? I'm going based off their reaction.. Maybe seemingly?

You could use “sure” or “surely” instead of “certainly.” Any of those 3 will work.

To make this sentence better, we can consider rephrasing it to enhance clarity and readability. Here's a revised version:

"After school on Friday, students at Miriam Middle School who weren't initially excited about their upcoming gravity project became enthusiastic."

In this revised version, we have rearranged the sentence to improve the flow of information. We clarified that the change in excitement happened specifically after school on Friday, addressing any potential confusion in the original sentence. Moreover, we added the word "initially" to indicate that the students' level of excitement changed over time.